Cord for piled rug



Oct. 15, 1968 YAsuAKl |WA| 3,405,598

CORD FOR FILED RUG Filed Jan. 24, 1967 2 Sheets-Sheet 1 o F/g/ i,

i ,/V J ,"1 3 c @et l5, 968 YAsUAKl |WA| l 3,405,598

CORD Foa FILED RUG Filed Jan. 24, 1967 2 Sheets-Shel??l 2 Ilm@ United States Patent O 3,405,598 CORD FOR PILED RUG Yasuaki Iwai, 29-1 Rokkodai-cho, Nada-ku, Kobe, Japan Filed Jan. 24, 1967, Ser. No. 611,371 Claims priority, application Japan, Feb. 2, 1966, 41/ 6,340 8 Claims. (Cl. 87-7) ABSTRACT F THE DISCLGSURE A cord for a pile rug which has two core members positioned side by side and extending parallel to each other. A plurality of wrapping materials are wrapped spirally around the core members, and a plurality of pile forming materials are interwoven with said wrapping materials between said core members. The pile forming materials extend upwardly from between said core members to form piles which may be either cut piles or loop piles.

This invention relates to improvements in a cord for a rug and, more particularly, to improvements in a cord for a rug on the surface of which is formed pile, the rug being composed of cords or braids sewn up in a circinate, juxtaposed or other desired shape.

As a means for forming pile on the surface of a socalled braided rug, tubular braided rug or wrap-a-round rug, i.e. any rug comprising cords or braids sewn up in a circinate, juxtaposed or other desired shape, several methods have been proposed and practiced; however, all of them have proved to be disadvantageous either in that the way of forming pile is so complicated and di'icult that the practice is economically unadvisable, or in that the way of forming pile is so poor and primitive that the pile itself is apt to disengage from the rug proper, hence to detract from the beautiful appearance of the said rug. The methods which have been introduced are further disadvantageous in that the pile generally militates against the properly smooth sewing-up of the base materials of cords or braids when the said cords or braids are sewn up into a rug because a .part of the pile is readily sewn up into the same.

The primary object of this invention, therefore, is to provide a cord for a pile rug of low cost, 0u the surface l of which rug are formed a number of piles of loop form or piles of cut form, hence to make it feel thick and appear attractive.

It is another important object of this invention to provide a cord for a pile rug in which the pile will not separate from the cord even though the pile yarns are not specically reinforced at the root portions, and the pile yarns will retain the predetermined shape and pattern.

It is still another important object of this invention to provide a cord for a pile rug in which by keeping the roots of the pile yarns in between the plurality of core materials where said core materials adjoin and by providing a space substantially equal to the width at least of one core material on both sides of the pile yarn roots, the cord can be easily sewn into a rug by means of machine, and a rug which has beautiful pile trimly formed on its surface can be produced; the said pile being completely protected from collapsing when it is sewn in the rug because it is constituted in the above-described manner.

According to a preferred construction of the present invention, the cord for a pile rug of the present invention comprises at least two lengths of core materials laid in juxtaposition, a plurality of wrapping or covering materials wrapped spirally around the said core materials, and a plurality of pile-constituting materials positioned along and betweeny the said core materials and interlaced 3,405,598 Patented Oct. 15, 1968 ice with the said wrapping or covering materials to form a number of loops on the upper side which are braced Where they pass under the wrapping materials whereby either by cutting the said loops at their outermost ends or retaining the said loops as they are, a cord for a pile rug having either cut pile or the loop pile upon its upper side is obtainable.

According to the cord for a pile rug of the present invention, therefore, the pile-constituting materials for forming tufts are so interwoven with the wrapping or covering materials on the under side of the cord and are so firmly wedged in between the core materials, the .piles will not budge nor disintegrate there is no necessity for sewing up their root portions by using extra thread, whereby it is possible to eliminate this sewing step, hence to make easy, speedy mass-production, and it is advantageous in that, because machine stitches are not used, the root portions of the piles look extremely natural and beautiful.

The cord for a pile rug of the present invention is further advantageous in that because there exists a space, which is about the width of each core material, on both sides of the root portions of the piles, said piles will not hamper the sewing-up of the cords when said cords are made up into a pile rug, and subsequently because the piles will not collapse when the cords are sewn together, a pile rug in which the pile is uniformly flawless and beautiful is easily obtainable, and further by simultaneously employing a plurality of multi-colored wrapping or covering materials and similarly multi-colored pile-constituting materials, a cord for a pile rug having elegantly multi-colored pile on the surface of the similarly elegant, multi-colored cord is obtainable, which will enable the said cord for a pile rug to increase its service value because the external appearance is gorgeously and exquisitely enriched by the combination effects of the multi-colored materials.

Featuring those advantages as hereinabove described, the cord fo1 a pile rug of the present invention will make possible a pile rug having a rich appearance and thick feel when a number of cords are arranged in parallel so that the pile can erect and it is sewn up where the cords `adjoin each other, whereby it is possible to greatly raise the merchandise value of the rug of this kind which heretofore has often been simple and monotonous. It is also possible to obtain a pile rug of unusually novel construction and feel either by increasing or decreasing the number of pile-constituting materials to be used as compared to the wrapping or covering materials, thereby adjusting the density of the pile at will, hence to bring about a variety of effects. There can also be made a pile rug of unusually novel construction and feel in which the pile can be long or short by changing the height of the pile yarns.

In order that the present invention invention may be more fully understood, reference will now be made to the accompanying drawings, in which:

FIGURE 1 is a perspective view of one embodiment of the cord for a pile lrug according to the present invention, with the end portions of the pile yarns being looped;

FIGURE 2 is a perspective view of another embodiment of the cord for a pile rug according to the present invention, with the pile yarns being cut at vtheir outermost ends;

FIGURE 3 is a fragmentary schematic view showing the basic consrtuction of the cord for a pile rug embodying the present invention;

FIGURE 4 is a simplified sectional view of the cord for a pile rug of the present invention, taken on the line II-II of FIGURE 2;

FIGURE 5 is a simplied cross section of a rug formed from cords such as those illustrated in FIGURE 2: and

FIGURE 6 is a perspective schematic view of a pile rug such as is shown in FIG. 5.

Referring more particularly to the drawings, the cord for a pile rug embodying the present invention as illustrated in FIGURE l comprises two thick core members 1 extending parallel to each other, a plurality of wrapping or covering materials 2 of wool origin wrapped spirally around said core members, and a plurality of pile forming materials 3 of wool origin having their root portions positioned in between the above two core members 1 and interlaced with the Wrapping or covering materials 2. As seen in FIG. 3, the pile forming materials 3 are interwoven with the crossed covering materials 2. The portions ofthe covering materials 2 extending across the tops of the core members 1 cross over the lower portions of the covering materials extending across the bottoms of the core members at 5, and the pile forming materials 3 extend over one such crossover point 5 and under the next such intersection. Alternate pile forming materials 3 are woven oppositely. The portions of the pile forming materials 3 woven over the intersections of the covering materials extend outwardly in the form of pile loops 4. It will be seen that when the core members 1 and covering materials 2 are tightly woven, the pile forming materials 3 will be tightly held between both the core members.

According to this embodiment, the pile loops 4 will not pull out nor disengage from the cord proper even through they are not sewn in by a sewing machine or other means, and they will remain fast at all times, because the pile forming materials 3 having said tufts 4 interlock with the wrapping or covering materials 2 and they are firmly wedged in between the two core members.

FIGURE 2 shows another embodiment of the present invention, in which the outermost ends of the pile loops 4 as shown in FIGURE 1 are cut to form cut pile 4. The remainder of the cord structure is the same as in FIGURE 1. This embodiment is advantageous in that the product will have much tuftier touch and appearance than the one of FIGURE 1. By arranging a number of such cords adjoining each other with their tufts 4 upright and sewing them up into a rug, it is possible to obtain a piled -rug as illustrated in FIGURE 6 which is rich in appearance and has thick feeling and a quite agreeable touch. The rug like this which has pile of uniform density and is so beautiful, is easily made because it is so devised that there exists along both sides of the root portions of the tufts 4 a space which is almost as wide as the width D of the core materials 1, and therefore said tufts 4 do not hamper the sewing together of the cords and they will not collapse and be sewn in between the cords.

The cord for a pile rug of the present invention, the embodiments thereof described above, will hereinafter be discussed with particular regard to the materials to be used therefor and the features ancillary to same.

Recommended as the core materials 1 are cord-like materials of adequately soft and flexible nature such as a long and short fiber assembly, synthetic resin tube, sponge rubber, etc., and as the wrapping or covering materials 2 and also as the pile-constituting materials 3, yarns or threads of wool, cotton, etc., which may easily be dyed and which are soft and flexible. The number of wrapping or covering materials to be used and the number of pileconstituting materials to be employed and the frequency of interlacing between the wrapping or covering materials and the pile-constituting mate-rials are not restricted and they may be determined freely at will: For example, when ten lengths of wrapping or covering materials are in use ten lengths of pile-constituting materials may be used so that each one of the said wrapping or covering materials has a pile forming material extending under it and one extending over it between the core materials which are laid in contiguity. Likewise, six lengths of pile-constituting materials may be used with twelve lengths of wrapping or covering materials, a pile forming material passing over and under two wrapping or covering materials at a time along and between the adjoining core materials.

The schematic view of FIGURE 3 showing the basic construction shows the embodiment in which two wrapping or covering materials, a, b, are wrapped around the core numbers 1, and two pile-constituting materials c, d, are used. IIt is only necessary that the number of pile-consituting materials be increased if it is desired to enrich the thick feel of the rug to be made whereas the number of pile-constituting materials can be decreased if it is desired to give a rather rough-looking feel to the rug to be produced. The number of those materials to be used, in consequence, depends entirely on the type of rug which is to be made.

While the invention has been described with reference to the principal embodiments, those are only for the purpose of illustration and the invention is not limited thereto, and many changes and modifications other than those described above may be made by a person skilled in the art. -It is to be understood therefore that it is intended to cover all such changes and modifications so long as they do not depart from the scope of the invention as dened in the appended claims.

What is claimed is:

1. A cord for a pile rug, comprising at least two core members positioned side by side and extending parallel to each other, a plurality of wrapping materials wrapped spirally around said core members, and a plurality of pile forming materials interwoven with said wrapping materials between said core members and extending upwardly from between said core members to form piles.

2. A cord for a.- pile rug as claimed in claim 1 in which said wrapping materials have a lower portion extending across the bottoms of the core memers and an upper portion extending across the tops of the core members and crossing over said lower portion, and the pile forming materials interwoven with said wrapping materials extend under said lower portions of said wrapping materials lat said crossover points, alternate pile forming material being interwoven with at least alternate Wrapping materials.

3. A cord for a pile rug as claimed in claim 1 in which said pile forming materials are short lengths of material and form cut piles.

4. A cord for a pile rug `as claimed in claim 1 in which said pile forming materials are continuous lengths with the portions extending upwardly from betwleen said cord members being in loops forming loop p1 es.

5. A rug comprising a plurality of lengths of cord extending side by side fand attached to each other, said cord comprising at least two core members positioned side by side and extending parallel to each other, a plurality of wrapping materials wrapped spirally around said core members, and a plurality of pile-forming materials interwoven with said wrapping materials between lsaid core members and extending upwardly from between said core members to form piles.

6. A rug as claimed in claim 5 in which said wrapping materials have a lower portion extending across the bottoms of the core members and an upper portion extending across the tops of the core members and crossing over said lower portion, and the pile forming materials interwoven with said wrapping materials extend under said lower portions of said wrapping materials at said crossover potins, alternate pile forming materials being interwoven with at least alternate wrapping materials.

7. A rug as claimed in claim 5 in which said pile forming materials are short lengths of materials and form cut piles.

8. A rug as claimed in claim 5 in which said pile forming materials are continuous lengths with the portions 5 6 extending upwardly from between said cord members 3,153,366 10/ 1964 Iwai 87-7 being in loops forming loop piles. 3,344,699 10/ 1967 Ohno 87-7 References Cited FOREIGN PATENTS UNITED STATES PATENTS 5 5,577 9/1892 switzerland. 1,879,691 9/1932 Kalbach 112-410 2,150,023 3/ 1939 Clack 112-410 JOHN PETRAKES, Pn'mary Examiner. 

